In a blender container combine undrained tomatoes, brown sugar and vinegar.,Cover and blend until smooth.,With blender running, gradually add oil in a steady stream.,Cover and let stand 20 minutes to blend flavors or chill up to 4 days.,If chilled let stand at room tmperature for 30 minutes before serving.,Stir before serving.,______,Add 1/4 cup dressing; toss to coat.,Top with Parmesan cheese; drizzle remaining vinagrette over the salad.